Underdog Promo Code COVERS: Play $5 Get $50 in Fantasy Bonus Entries for Cavs-Mavs, NBA, NCAAB

Luc LeBlanc - Betting Editor at Covers.com
Luc LeBlanc • Content Editor 3+ years betting experience
Updated: Mar 13, 2026 , 04:30 PM ET • 3 min read

Use Underdog promo code COVERS for $50 in bonus entries when you play $5. Perfect for Cavaliers vs Mavericks Friday night action.

Photo By - Use Underdog promo code COVERS to play $5, Get $50.

The Underdog promo code COVERS delivers $50 in bonus entries when you place your first $5 entry, making it perfect timing for Friday's Cavaliers vs. Mavericks showdown in Dallas. This welcome offer from one of the best prediction market apps gives new users substantial bonus value to get started with daily fantasy sports.

With Cleveland looking to bounce back from recent struggles and Dallas seeking to build on their first win since Feb. 24, Friday, March 13 presents an ideal opportunity to claim this generous welcome bonus.

Play $5, Get $50
Code: COVERS

Cavaliers vs Mavericks: Underdog Promo Code Details

The Underdog promo code COVERS transforms a modest $5 initial entry into $50 worth of bonus entries for new users. After placing your qualifying $5 entry on Friday's Cavaliers-Mavericks game, you'll receive the bonus credit within 72 hours, giving you substantial additional value to explore Underdog's daily fantasy offerings.

Key terms include a 1x wagering requirement that must be completed within 14 days of receiving your bonus. The bonus entries expire after 60 days if unused, and account verification is required before withdrawing any winnings. This offer is not available in New Jersey, New York, Maryland, Ohio, Michigan, and Pennsylvania.

For example, if you create a lineup featuring James Harden and Donovan Mitchell for Cleveland's backcourt and your picks hit, you'll earn real cash winnings. Even if your initial entry doesn't succeed, you still have $50 in bonus entries to continue playing.

Compare this offer with other best prediction market promos to see why Underdog stands out for new users.

Friday, March 13 - Key NBA Matchups

  • Suns @ Raptors - 7:30 PM ET
  • Cavaliers @ Mavericks - 7:30 PM ET (Prime Video)
  • Timberwolves @ Warriors - 10:00 PM ET (Prime Video)
  • Bulls @ Clippers - 10:30 PM ET

Use the correct Underdog promo code for your state

Underdog Promo Code Eligible States
 COVERS AK, AL, AR, AZ, CA, CO, FL, GA, IL, IN, KS, KY, MA, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY

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How to Claim Your $50 Underdog Bonus

Claiming your Underdog welcome bonus for Friday's Cavaliers vs. Mavericks game is straightforward with these steps:

  1. Visit Underdog Fantasy and create your new account
  2. Enter promo code COVERS during registration
  3. Make your first $5 entry on the Cavaliers-Mavericks game
  4. Receive $50 in bonus entries within 72 hours
  5. Complete account verification to unlock withdrawals
  6. Use your bonus entries within 60 days

Affiliate Disclosure: Our team of experts has thoroughly researched and handpicked each product that appears on our website. We may receive compensation if you sign up through our links.

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Luc LeBlanc
Content Editor

Luc has been passionate about sports since he was a child, playing competitive hockey and staying closely tuned to professional leagues. Today, he brings that same energy to his work as a Content Editor, covering NHL games, player props, and betting trends with a sharp, analytical eye.

Since 2023, Luc has been writing picks and analysis for various publications, helping readers discover value in several major sports. While hockey is his specialty, he also closely follows tennis, keeping up with both the ATP and WTA Tours.

A graduate of Saint Mary’s University (BSc, Geography, 2025), Luc approaches sports betting the way he approaches maps and statistics by looking for patterns, trends, and angles that give him an edge. He focuses on research-backed and well-informed picks, spotting correlations, and finding the best opportunities in player props and game markets.

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